角色的视觉呈现引入了一个新维度，从而产生了关于身份灵活性、个人隐私、声誉和信任等新问题。

Yet visual representation of avatars introduced a new dimension and, thus, new questions about identity flexibility, personal privacy, reputation and trust.

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他们还必须学习有关于计算机操作的法律和道德方面的知识，其中包括个人隐私和数据安全的问题。

They also study the legal and ethical aspects of computer operation, including privacy issues and data security.

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